Floor drain grate



FIG. 1 is a top perspective view of a floor drain grate embodying our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front side view of the floor drain grate seen in FIG. 1, the rear side view, left side view and right side view being mirror images thereof; and,

FIG. 5 is a sectional view of the floor drain grate taken along line 5-5 in FIG. 2.

The broken lines, and the areas within them, in the figures depict portions of the floor drain grate that form no part of the claimed design. 

CLAIM The ornamental design for a floor drain grate, as shown and described. 